This is dumb, you can not compare different projects, of different difficulty, and of different scope together. You also can't isolate the simple randomness factor that different programmers are doing work on each of these, and that could simply be the cause of difference. Also, having a lot of bugs reported, can actually be a sign of a good thing, as opposed to having a lot of bugs not reported.

Anyhow, I don't think this says anything about anything.